The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 02, 2011
Filed:
Jul. 17, 2007
Torsten Kuehn, Ingelheim, DE;
Burkhard Peter Metzger, Ingelheim, DE;
Torsten Kuehn, Ingelheim, DE;
Burkhard Peter Metzger, Ingelheim, DE;
Boehringer Ingelheim Pharma GmbH & Co. KG, Ingelheim am Rhein, DE;
Abstract
A process for producing a container comprising an outer container, an inner bag disposed therein and a pressure equalisation opening disposed in the outer container, and a container produced according to this process, is described, wherein a pre-moulding, comprising two coaxial tubes, is first produced by co-extrusion with the help of a blow mould and with an outwardly-projecting base seam being formed. The process forms a pressure equalisation opening in the outer container without endangering the integrity of the container, wherein a lower wastage rate and higher productivity are achieved. To do this, the base seam is partially cut off and a force which acts in the direction of the seam is introduced into the pre-moulding, which has a temperature of 40 degrees C. to 70 degrees C., which force breaks open and plastically deforms the base seam so that a pressure equalisation opening is formed in the base area.